Definitions: Variables

From Chemepedia

Basic Units

Definition Variable Dimensions
Length
Diameter
Radius
Time
Temperature
Mass
Mole

Common derived units

Definition Variable Dimensions
Area
Volume
Force
Pressure
Energy (Work)
Power

Thermodynamic Properties

Definition Variable
Density
Viscosity
Specific internal energy (per unit mass)
Specific enthalpy (per unit mass)
Pressure
Temperature
Thermal conductivity
Heat Capacity

Fluid Flow

Definition Variable
Mass Flow Rate
Velocity
Volumetric flow rate

Notations

To sort the table in ascending or descending alphabetical order click on the symbol in the desired column title of the table.

Quantity Symbol SI Units English Units Applications
Area Common Derived Unit
Volume Common Derived Unit
Force Common Derived Unit
Pressure Common Derived Unit
Work Common Derived Unit
Shaft Work Mechanical energy balance
Shaft Work ‘d’-Form Mechanical energy balance
Power Common Derived Unit
Volumetric Flow Rate Fluid Flow
Mass Flow Rate Fluid Flow
Molar Flow Rate Fluid Flow
Velocity Fluid Flow, Viscosity
Mass Basic Unit
Length Basic Unit
Diameter Basic Unit
Radius Basic Unit
Time Basic Unit
Temperature Basic Unit
Mole Basic Unit
Density Physical Property
Viscosity Physical Property, Viscosity
Compression Work ‘d’-Form Mechanical energy balance
Compression Work Mechanical energy balance
Viscous Dissipation ‘d’-Form Mechanical energy balance, Friction factor, Viscous dissipation
Viscous Dissipation Mechanical energy balance, Friction factor, Viscous dissipation
Darcy Friction Factor Mechanical energy balance, Friction factor, Viscous dissipation
Fanning Friction Factor Friction factor, Viscous dissipation
Loss Coefficient Loss coefficient, Mechanical energy balance
Gravity - Acceleration Stokes flow around a sphere
Kinetic energy correction factor Kinetic energy correction factor, Mechanical energy balance
Reynolds Number Reynolds number, Viscous dissipation